Milking-machine with electromagnetic closing device.



UNITED sTATns PATENT OFFICE;

AXEL sABnoE, or AASTRUP, GERMANY. 'i NHLKING-MCHINE WITH ELECTROMAYGNv-ETIC CLOSlNG DEVICE.

Specification of Letters Yatent.

Patented Nov. lis, 190e.

Application ned February i, isioe...srii1no.299.975.

To all whom t may concern:

Be it known that I, AXEL SABROE, a subject of the Emperor of Germany, residing at Aastrup, Germany, have invented certain new and useful Improvements in Milking- Machines with Electroma etic Closing Devices, of which the following is a full, clear, and exact specification.

.In milking-machines floats have been femployed to close the opening admitting the milk into the collecting vessels as soon as the `milk rises to a' certain level in the same or as isoon as the supiply of. milk ceases, said float connecte byvmeans of a lever with the oontact'of'an electric circuit inclosing a mag'- net. When any of the 'parts of such closing,-

devicelevers or circuit for the magnet fails to o crate, tliefsuctlon in the conduit leading to t e teat oflthe animal will continue, and this is very vinjurious ,for thean'imals when the milk in the bag is exhaustedg vBy the present invention the arrangement is s uoh ,that every individual conduit for the milk is inimediately and positively closed by a deviee operated electromagneticallyas soon as the flow of milk slakens or'ce'ases, so that the animals are most positively safeguarded against v an injurious suction on a teat being exhausted. f .In the accompanying drawings different exam Ales 4of the invention are illustratedi. e., t e ilow of milk itself may close the. cnrrent for the magnet or the contacts for the circuit are brought together by the weight of the'passing milk, and in this latter case a weaker current may be'employed, while in the former case a more necessar as it is "considerably weakened when it as to pass through the milk.

Figure '1 is a side view of the device with parts broken away to show the contact-plate.

igs. 2, 3, and 4l aremodificati'o'ns. y The' air-tube a, isprovided -with branches b l for the dierent suction-pi es. The cock d,

Fig. '1, is connected'with t e branch b by a short piece uo'fpipe, f, carrying thesupport g for an electromagnet h. The plug of the cock d is provided with a double-armed lever, of which one arm carries the armature i for the electromagnet, While the other arm 7c carries a weight as counterbalance. fm, is a mouthpiece made of insulating material and being` inserted into the body of cock d.

Said mouthpieceis connected with the lieXible conduit n, leading to the"teat. The mouthpiece m is .also provided in itsinterior .owerful current isv with the'- contact-pieces ',fp, vbeing connected `by wires 1' with the electromagnet h.

In Fig. 2 a valve-casing s is employed in- I stead of the cock d, Fig 1. vThis casing is vprovided with a pivoted valve-plate i, having -casing s carries the elec- ,mences to flow the contact-plate is pressed 'f by its weight, against another contact,- so as to produce a circulation of an electric current hrough 'the electromagnet. Fig.V 3 shows the contact late o secured in, a lateral chamber 'u of t e conduit. A binding-post c connects said contactfplate with the electromagnet by one of the wires r. -binding-post w, to which the other wire r is secured, isl'so near to the contact-plate o that the latter under the weight of the flowing milk can be pressed down against it. Thus the current for the electromagnet will remain closed as long as the milk flows. Fig. 4 shows acontact-plate o, which is pivoted and reaches into the conduit. An extension of saidcontactplate carries outside one binding-post c, and the otherbindin -post w Yis stationary, but within range of t e pivoted platen. Here also theycurrent will be closed and will remain closed as soon as the flow of milk commences and continues.

In the device Fig. 2 it is necessary to 'liftmilk passing between the contacts pi will allowthe assage of the electric current, so that the e ectromagnet will hold the armature i in the o en position as long as the milk continues to ow and as long as the; current The second can pass throughv the milk from one of the contact-bodies p to the other. te'at begins-.to be exhausted and vthe current cannot iind 'any longer al passage from one ,contactfplate to the other, owing to the weak When the current of milk, 'the valve-plate will be released and drop into'a position to close oit *i while the electromagnet .is

the air-suction. The same effect vis obtained l ance-Weight on the arm k will act to close the vcock and so cut off the suction from the teat.

Having thus described my invention, what I claim isl 1. In a milking-machinewith electromag-` netic closing device an electromagnet, an armature for the same, holding' the passage of the milkopen while the-electromagnet is e'nergized, and adapted to close said passage at its release, and contactlates connected to said electromagnet and p aced within the passage of the milk, adapted to ermit the circulation of the electric current yA the flow of the milk, substantially as described.

2. In a'milking-machine with electromagnetic closing device, an electromagnet, an ar` mature i for the same, governing a sto -cock, and holding the passage of the mil 'open energized, and

VILBLE COPY adapted to close said passa e at its release, and contact-plates connecte to said electromagnet and -placed Within the passage of the milk, adapted to permit the circulation of the electric current by the flow of the milk, substantially as described.

. A 3. In a milking-machine with electromagnetic closing device an electromagnet, an armature i in a chamber Within the milk-conduit holding thepassage of the' milk open Whilel the electroma et is energized, and adapted to close sai vpassa,1z,e at its vrelease and contact-plates connected to said electromagnet and laced within the passage of the milk adapte to electric current y the oW of the milk sub-v stantially as described.

In testimony whereof AXEL SABROE. In presence of-,

JULIUS RPKE, OTTO LAU.

ermit the circulation of the I aix my signature. io 

